Added maxLength tagRule, which offers slightly improved UI relative to the HTML property
Added regex rule matching
'keydown' -> 'keyup' so that event "tagName" param more accurately reflects input contents
Compacted code; fixed a couple minor bugs re: matchRules
Added tests, changed some configuration/rules, cleaned up some styleguide non-sense
Merge pull request #12 from aef-/azaslavsky-master

Events now on keyUp, maxLength/regexp validation rules added, validateOnChange config added